table{
    border: 1px solid gray;
    margin: 20px 0;
    width: 100%;
}
caption{
    font-size: 20px
}
td{
    height: 36px;
    line-height: 36px;
    text-align: center;
    font-size: 18px;
    border: 1px solid gray;
}
.ht{
    background-color: #ececec;
}